Key features:

Easy Assembly - Assembles in less than 30 minutes with GLUE only!
Durability - Besides the handrails, this is one SOLID model that can take the all too common beating while sitting over the mainline.
Accuracy - The prototype for this bridge is on the BNSF mainline off of Pioneer Blvd in Whitter, CA. We're confident that if you took a tape measurer to the real thing, our model would measure up perfectly.
Also Includes - TWO, etched metal signal heads (with room for the addition of LED's), FOUR concrete footings and ONE Electrical Box!